High Pressure Synthesis of the Cation‐ordered Perovskite 3C 1:2 ‐Ba 3 NaRu 2 O 9 | Zendy

ArevaloLopez Angel M. | Zendy; Senn Mark S. | Zendy; Skedd Lauren | Zendy; Attfield J. Paul | Zendy

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High Pressure Synthesis of the Cation‐ordered Perovskite 3C 1:2 ‐Ba 3 NaRu 2 O 9

Author(s) -

ArevaloLopez Angel M.,

Senn Mark S.,

Skedd Lauren,

Attfield J. Paul

Publication year - 2014

Publication title -

zeitschrift für anorganische und allgemeine chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.354

H-Index - 66

eISSN - 1521-3749

pISSN - 0044-2313

DOI - 10.1002/zaac.201300549

Subject(s) - perovskite (structure) , paramagnetism , crystallography , hexagonal crystal system , space group , materials science , chemistry , condensed matter physics , physics , x ray crystallography , diffraction , optics

The new phase 3C 1:2 ‐Ba 3 NaRu 2 O 9 was synthesized by heating the hexagonal perovskite 6H‐Ba 3 NaRu 2 O 9 at 900 °C under a pressure of 9 GPa. 3C 1:2 ‐Ba 3 NaRu 2 O 9 adopts the 1:2 B site‐ordered cubic perovskite type structure [space group P $\bar{3}$ m 1, cell parameters a = 5.8068(3) and c = 7.0652(5) Å] but a significant cation inversion between Na and Ru sites is found. No magnetic ordering transition is observed down to 2 K and 3C 1:2 ‐Ba 3 NaRu 2 O 9 displays Pauli paramagnetism indicative of a metallic oxide with strong electron‐electron correlations.

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